[Services-Upload|Trunk]

Merge  -r 55574:56005 into Trunk
	new upload/ download/delete methods
	create and use properties file



git-svn-id: https://svn.driver.research-infrastructures.eu/driver/dnet40/modules/uoa-services-portal/trunk@56006 d315682c-612b-4755-9ff5-7f18f6832af3

services/upload/package.json

@@ -11,8 +11,10 @@
   "license": "ISC",
   "dependencies": {
     "body-parser": "^1.15.2",
+    "cookie-parser": "^1.4.4",
     "cors": "^2.8.4",
-    "express": "^4.14.0",
+    "express": "^4.17.1",
-    "multer": "^1.1.0"
+    "multer": "^1.1.0",
+    "properties-reader": "0.0.16"
   }
 }

services/upload/properties.file

@@ -0,0 +1,4 @@
+userInfoUrl = http://scoobydoo.di.uoa.gr:8080/dnet-openaire-users-1.0.0-SNAPSHOT/api/users/getUserInfo?accessToken=
+originServer = .di.uoa.gr
+post.allowed = /upload
+ssl = false

services/upload/uploadService.js

@@ -1,54 +1,227 @@
 var express = require("express");
 var bodyParser = require("body-parser");
+var cookieParser = require('cookie-parser');
 var multer = require("multer");
+var PropertiesReader = require('properties-reader');
+var properties = PropertiesReader('./properties.file');
 var app = express();
-var cors = require('cors')
+var http = null;
-app.use(cors());
+
+if(properties.get('ssl')) {
+     http = require("https");
+} else {
+    http = require("http");
+}
+
+
+// Properties
+var auth = properties.get('userInfoUrl');
+var originServer = properties.get('originServer');
+var allowPostRequests = properties.get('post.allowed').split(',');
+
+var storage = multer.diskStorage({
+    destination: function (req, file, cb) {
+        cb(null, 'uploads')
+    },
+    filename: function (req, file, cb) {
+        if(req.params.id) {
+            cb(null, req.params.id + '-' + new Date().getTime() + '.' + file.originalname.split('.').pop());
+        } else {
+            cb(null, file.originalname);
+        }
+    }
+});
+
+var upload = multer({ storage: storage })
 
 app.use(bodyParser.json());
-app.use(bodyParser.urlencoded({ extended: true }));
+app.use(bodyParser.urlencoded({extended: true}));
+app.use(cookieParser());
 
-app.use(function(req, res, next) {
+app.use(function (req, res, next) {
-    res.header("Access-Control-Allow-Origin", "*");
+    if((req.method === 'POST' || req.method === 'DELETE') && allowPostRequests.indexOf(req.url) === -1) {
-    res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
+        if(checkCookies(req)) {
-    next();
+            res.header('Access-Control-Allow-Origin', req.headers.origin);
+            res.header('Access-Control-Allow-Headers', 'Origin, X-Requested-With, Content-Type, Accept, x-xsrf-token');
+            res.header('Access-Control-Allow-Credentials', true);
+            next();
+        } else {
+            res.header('Access-Control-Allow-Origin', '*');
+            res.header('Access-Control-Allow-Credentials', true);
+            res.header('Vary', 'Origin');
+            res.status(403).send(getResponse(403, "Forbidden: You don't have permission to access. Maybe you are not registered."));
+        }
+    } else if(req.method === 'OPTIONS' && allowPostRequests.indexOf(req.url) === -1){
+        res.header('Access-Control-Allow-Origin', req.headers.origin);
+        res.header('Access-Control-Allow-Credentials', true);
+        res.header('Access-Control-Allow-Methods', 'POST, DELETE');
+        res.header('Access-Control-Max-Age', 1800);
+        res.header('Access-Control-Allow-Headers', 'Origin, X-Requested-With, Content-Type, Accept, x-xsrf-token');
+        next();
+    } else {
+        res.header('Access-Control-Allow-Origin', '*');
+        res.header('Access-Control-Allow-Headers', 'Origin, X-Requested-With, Content-Type, Accept');
+        next();
+    }
 });
 
-app.post("/upload", multer({dest: "/home/argirok/projects/openaire/uoa-services-portal/trunk/services/upload/uploads/"}).array("uploads[]", 12), function(req, res) {
+app.post("/upload", upload.array("uploads[]", 12), function (req, res) {
-  var filepath ="/"+req.files[0].path;
+    var filepath = "./" + req.files[0].path;
-  console.log(req.files[0]);
+    if (req.files[0].mimetype !== 'text/csv') {
-  if (req.files[0].mimetype != 'text/csv') {
+        console.error("No proper file type");
-      console.error("No proper file type");
+        res.status(500).send(getResponse(500, "No proper file type"));
-      res.status(500).send(getResponse(500,"No proper file type")) ;
+    } else {
-  }else{
+        //send file
-    //send file
+        res.download(filepath);
-    res.sendFile(filepath);
+    }
-  }
+    deleteFile(filepath);
-  var fs = require('fs');
-  fs.stat(filepath, function (err, stats) {
-  console.log(stats);//here we got all information of file in stats variable
-
-  if (err) {
-      return console.error(err);
-  }
-
-  fs.unlink(filepath,function(err){
-       if(err) return console.log(err);
-       console.log('file deleted successfully');
-  });
-});
 
 });
-app.get('/get/d6bd36a06762e2f0da891f9670fcb2b0', function(req, res) {
+
-  res.sendFile('uploads/d6bd36a06762e2f0da891f9670fcb2b0')
+app.post('/upload/:id', upload.single('photo'), (req, res) => {
-})
+    const token = req.headers['x-xsrf-token'];
-var server = app.listen(8000, function() {
+    const file = req.file;
+    const filepath = "./" + file.path;
+    if(!token) {
+        res.status(401).send(getResponse(401, "Unauthorized"));
+        deleteFile(filepath);
+    }
+    else if (!file || (file.mimetype !== 'image/jpeg' && file.mimetype !== 'image/png')) {
+        res.status(500).send(getResponse(500, "No image file type"));
+        deleteFile(filepath);
+    }
+    else {
+        http.get(auth+token, function (resp) {
+            var responseString = "";
+            resp.on("data", function (data) {
+                responseString += data;
+            });
+            resp.on("end", function () {
+                var result = JSON.parse(responseString);
+                if(result.error) {
+                    res.status(401).send(getResponse(401, "Unauthorized"));
+                    deleteFile(filepath);
+                } else {
+                    // if user id contains id param or is Admin or Curator keep file and send information, else delete it.
+                    if(result.sub.indexOf(req.params.id) !== -1 || isAdminOrCurator(result.edu_person_entitlements)) {
+                        res.send(file);
+                    } else {
+                        res.status(401).send(getResponse(401, "Unauthorized"));
+                        deleteFile(filepath);
+                    }
+                }
+            });
+        });
+    }
+
+});
+
+app.get('/download/:filename', function (req, res) {
+   res.download('./uploads/' + req.params.filename);
+});
+
+app.delete('/delete/:filename', function (req, res) {
+    const token = req.headers['x-xsrf-token'];
+    if(!token) {
+        res.status(401).send(getResponse(401, "Unauthorized"));
+    } else {
+        http.get(auth+token, function (resp) {
+            var responseString = "";
+            resp.on("data", function (data) {
+                responseString += data;
+            });
+            resp.on("end", function () {
+                var result = JSON.parse(responseString);
+                if(result.error) {
+                    res.status(401).send(getResponse(401, "Unauthorized"));
+                } else {
+                    // if user id is on filename or is Admin delete file else unauthorized.
+                    if(result.sub.indexOf(req.params.filename.split('-')[0]) !== -1 || isAdminOrCurator(result.edu_person_entitlements)) {
+                        deleteFile('./uploads/' + req.params.filename);
+                        return res.status(200).send(getResponse(200, "File Deleted Successfully"));
+                    } else {
+                        res.status(401).send(getResponse(401, "Unauthorized"));
+                    }
+                }
+            });
+        });
+    }
+});
+
+const server = app.listen(8000, function () {
     console.log("Listening on port %s...", server.address().port);
 });
-function getResponse(code, message){
-  var response ={};
-  response["code"]=code;
-  response["message"]=message;
-  return response;
 
+function getResponse(code, message) {
+    var response = {};
+    response["code"] = code;
+    response["message"] = message;
+    return response;
 }
+
+function deleteFile(filepath) {
+    const fs = require('fs');
+    fs.stat(filepath, function (err, stats) {
+        console.log(stats); //here we got all information of file in stats variable
+
+        if (err) {
+            return console.error(err);
+        }
+
+        fs.unlink(filepath, function (err) {
+            if (err) return console.log(err);
+            console.log('file deleted successfully');
+        });
+    });
+}
+
+function isAdminOrCurator(roles) {
+    var isAdmin = false;
+    var isCurator = false;
+    for(var i = 0; i < roles.length; i++) {
+        if(roles[i] === 'urn:geant:openaire.eu:group:Portal+Administrator#aai.openaire.eu') {
+            isAdmin = true;
+        }
+        if(roles[i] === 'urn:geant:openaire.eu:group:Curator+-+Community#aai.openaire.eu') {
+            isCurator = true;
+        }
+    }
+    return isAdmin || isCurator;
+}
+
+function checkCookies(request){
+    var valid = true;
+    var cookieValue = request.cookies.AccessToken;
+    if(cookieValue === undefined || cookieValue === ''){
+        console.log("no cookie available");
+        valid = false;
+    } else {
+        const headerValue = request.headers['x-xsrf-token'];
+        if(headerValue === undefined || headerValue === ''){
+            console.log("no header available");
+            valid = false;
+        } else{
+            if(cookieValue !== headerValue){
+                console.log("no proper header or cookie");
+                valid = false;
+            } else if(!hasValidOrigin(request.headers.origin)){
+                console.log("no proper origin");
+                valid = false;
+            }
+        }
+    }
+    return valid;
+}
+
+
+function hasValidOrigin(origin) {
+    if(origin !== undefined && origin.indexOf(originServer) !== -1) {
+        return true;
+    } else {
+        console.log("Not valid origin. Origin server is \"" + origin +
+            "\", but expected value is \"" + originServer +
+            "\". If the expected value is not right, check originServer variable.");
+        return false;
+    }
+}
+